39results about How to "Rapid differentiation" patented technology

The invention discloses a propagation method for coral grass seedling tissue culture, and aims to provide a propagation method for coral grass seedling tissue culture with high propagation speed and low cost. The propagation method comprises the following steps: (a) a step of induction and differentiation of buds; (b) a propagation culture step of sterile seedlings; and (c) an acclimation and transplantation step of the sterile seedlings. The propagation method adopts an MS culture medium of 0.5 to 1.5 mg / L of 6BA and 0.05 to 0.15 mg / L of 2,4-D to effectively promote quick differentiation of coral grass leaves to form adventitious buds, and adopts the propagation culture in an MS culture medium of 0.3 to 1 mg / L of 6BA and 3 percent of sugar to propagate the adventitious buds exuberantly; and finally, the propagation seedlings are placed in an MS culture medium of 0.8 to 1.5 mg / L 3IBA and 3 percent of sugar, and the periphery of the propagation seedlings can quickly take roots. The propagation method can be widely applied to the field of coral grass seedling tissue culture.

The invention discloses a covered stent, which comprises a support structure and a tectorial membrane unit, and is characterized in that: the tectorial membrane unit comprises an inner-layer tectorial membrane and an outer-layer tectorial membrane which coats the support structure; the outer-layer membrane coats on the outer side of the inner-layer tectorial membrane; the inner-layer tectorial membrane is a biological membrane with good blood compatibility, and the outer-layer tectorial membrane is a biological membrane which is easy to induce the formation of thrombus; the inner-layer tectorial membrane contacting blood has good blood compatibility, can effectively reduce the formation of the thrombus, and maintains normal blood flowing channels; and the outer-layer tectorial membrane can induce the formation of the thrombus in aneurysm or thrombus of bleeding parts, promotes the aneurysm to be quickly activated and reduced, reduces the mass effect in vivo, simultaneously effectivelyadheres endothelial cells, promotes differentiation and proliferation of cells, quickens the endothelialization of lesion parts of vessels, and can more effectively treat vascular diseases such as the aneurysm and the like.

The invention relates to the technical field of sweet osmanthus grafting and seedling breeding, in particular to a sweet osmanthus grafting and seedling breeding method. Sweet osmanthus seedlings subjected to layering serve as stock, leaf bud seedlings obtained after leaf buds are subjected to cuttage and seedling breeding serve as scions, processing and control are conducted in the breeding process of the scions and the stock, so that the content of harmless bacteria on the stock and the scions is small, influences of the harmful bacteria on the cut environment in the grafting process are avoided, and affinity of the stock and scions is improved. The sweet osmanthus seedlings subjected to layering serve as the stock, and the leaf bud seedlings obtained after the leaf buds are bred serve as the scions so that after the stock and the scions are grafted, regeneration can be conducted quickly, the speed of healing of the stock and the scions is increased, and the survival rate is increased.

The invention discloses a soothing and repairing composition containing various plant extracts, which belongs to the technical field of cosmetic formulations. The soothing and repairing composition is made of the following components by weight: moisturizing agent 1%-10%, soothing and repairing agent 3%-10%, preservative 0.1%-3%, and the balance is ionized water. The soothing and repairing agent includes hydrolyzed lupine protein, carob fruit extract and Sufanghua flower extract. The composition has a remarkable soothing and repairing effect, can effectively relieve redness, swelling, pain, itching, papules and desquamation after the skin is stimulated, and can quickly repair the damaged barrier function of the skin and improve the ability of the skin to respond to external damage. According to different dosage forms of the product, the recommended addition amount of the soothing and repairing composition is 2%‑8%. The composition has the advantages of natural non-irritation, obvious soothing and repairing effect, and the like.

The invention relates to the technical field of river course management, and discloses a high-efficiency dredging device for water conservancy river project treatment, including a hull, the top of the right end of the hull is fixedly connected with a chain bucket machine, and the bottom end of the chain bucket machine is equipped with A bucket, the inner wall of the bucket is fixedly connected with a grid, the inner bottom of the hull is provided with a box, and the inside of the box is sequentially provided with a primary filter area, a primary sedimentation area and a secondary filter area from right to left. In the sedimentation area, a pre-sedimentation tank is provided at the bottom of the primary filtration area, and is communicated with the primary sedimentation area through the pre-settling tank. The high-efficiency dredging device for water conservancy and river project control has achieved the advantages of greatly reducing water pollution through the secondary sedimentation area and the sump. Through the treatment in the secondary sedimentation area, it can effectively decompose the river water and silt, so that the silt can be quickly recovered. Settling, and after the separation, the river water is separated by the inclined tube separation component and then poured into the sump, which can ensure reasonable effluent water quality.

The invention relates to a tissue culture and rapid propagation method of micro tubers of rhizoma bletillae. The method comprises the following steps: (1) selecting rhizoma bletillae fruits; (2) performing aseptic seeding; (3) culturing to enable seed embryo germination; (4) performing differentiation culture on buds; and (5) rooting and performing induced culture on the micro tubers. According to the method, different illumination intensity and culture temperature are provided in different growing stages, so that the seed embryo of rhizoma bletillae can efficiently germinate, and leaf primordium is timely differentiated to form the buds after germination; the rooting and the forming of the tubers are induced with the same culture medium, so that the seed germination, the leaf bud differentiation, the rooting, seedling growing and the inducing of the micro tubers are synchronously performed, and as a result, the inducing rate is high; the quality of the seeds and the seedlings is high; the transplanting survival rate is high; the high-quality production of the seeds and the seedlings of rhizoma bletillae is achieved; the wild resource can be effectively protected and rescued; and moreover, the demand on mass production is met.